But as always, Crowley found a way to turn this obstacle into an advantage. "Crowley didn't choose to be addicted," producer Robbie Thompson explains in an exclusive video from the Season 9 DVD.

His death in season 12 cut deep for the fandom as he was a series’ favorite. Mark Sheppard loved playing Crowley for so many years and often attended the Supernatural conventions.

Crowley's (Mark Shepperd) backstory in Supernatural, specifically how and when he died and became a demon, is largely alluded to throughout the show but ultimately amounts to a series of particulars.

If Supernatural really needs the man to make a return, the drama can always recast. Still, it will be hard to replace the snark which Sheppard brought if Crowley is assumed by another actor.

In “All Along The Watchtower,” Supernatural fans watched stunned as Crowley and Castiel were killed. The first of the two to die was Crowley, the King of Hell himself.

Supernatural saw the deaths of two major characters in the season 12 finale – and it looks like one of them will stick for good. Castiel (Misha Collins) and Crowley (Mark A Sheppard) both fell ...

Supernatural has been bringing back classic characters for its final season, but what about Crowley? The fan-favourite demon character – played by Mark Sheppard – appeared in around 70 ...

Crowley (Mark Sheppard) is going to stay dead as “Supernatural” heads into Season 13. The CW While Crowley seems to actually be dead, it seems like Castiel (Misha Collins) might be saved.

But Sheppard isn’t worried that Crowley’s dear old mom is getting the best of him. Rather, he thinks Crowley knows exactly what she’s up to with her lies. “He’s not stupid,” Sheppard says.

Supernatural is returning for its highly anticipated season 13 tomorrow, and one major question lingers. Are two of the series' leads actually dead?